1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
|
// Copyright 2015 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef GPU_COMMAND_BUFFER_SERVICE_SAMPLER_MANAGER_H_
#define GPU_COMMAND_BUFFER_SERVICE_SAMPLER_MANAGER_H_
#include <unordered_map>
#include <vector>
#include "base/memory/raw_ptr.h"
#include "base/memory/ref_counted.h"
#include "gpu/command_buffer/service/feature_info.h"
#include "gpu/command_buffer/service/gl_utils.h"
#include "gpu/gpu_gles2_export.h"
namespace gpu {
namespace gles2 {
class SamplerManager;
struct SamplerState {
SamplerState();
GLenum min_filter;
GLenum mag_filter;
GLenum wrap_r;
GLenum wrap_s;
GLenum wrap_t;
GLenum compare_func;
GLenum compare_mode;
GLfloat max_lod;
GLfloat min_lod;
GLfloat max_anisotropy_ext;
};
class GPU_GLES2_EXPORT Sampler : public base::RefCounted<Sampler> {
public:
Sampler(SamplerManager* manager, GLuint client_id, GLuint service_id);
GLuint client_id() const {
return client_id_;
}
GLuint service_id() const {
return service_id_;
}
const SamplerState& sampler_state() const {
return sampler_state_;
}
// Sampler parameters
GLenum min_filter() const {
return sampler_state_.min_filter;
}
GLenum mag_filter() const {
return sampler_state_.mag_filter;
}
GLenum wrap_r() const {
return sampler_state_.wrap_r;
}
GLenum wrap_s() const {
return sampler_state_.wrap_s;
}
GLenum wrap_t() const {
return sampler_state_.wrap_t;
}
GLenum compare_func() const {
return sampler_state_.compare_func;
}
GLenum compare_mode() const {
return sampler_state_.compare_mode;
}
GLfloat max_lod() const {
return sampler_state_.max_lod;
}
GLfloat min_lod() const {
return sampler_state_.min_lod;
}
bool IsDeleted() const {
return deleted_;
}
protected:
virtual ~Sampler();
SamplerManager* manager() const {
return manager_;
}
void MarkAsDeleted() {
deleted_ = true;
}
private:
friend class SamplerManager;
friend class base::RefCounted<Sampler>;
// Sets a sampler parameter.
// Returns GL_NO_ERROR on success. Otherwise the error to generate.
GLenum SetParameteri(
const FeatureInfo* feature_info, GLenum pname, GLint param);
GLenum SetParameterf(
const FeatureInfo* feature_info, GLenum pname, GLfloat param);
// The manager that owns this Sampler.
raw_ptr<SamplerManager> manager_;
GLuint client_id_;
GLuint service_id_;
// Sampler parameters.
SamplerState sampler_state_;
// True if deleted.
bool deleted_;
};
// This class keeps track of the samplers and their state.
class GPU_GLES2_EXPORT SamplerManager {
public:
SamplerManager(FeatureInfo* feature_info);
SamplerManager(const SamplerManager&) = delete;
SamplerManager& operator=(const SamplerManager&) = delete;
~SamplerManager();
// Must call before destruction.
void Destroy(bool have_context);
// Creates a Sampler for the given sampler.
Sampler* CreateSampler(GLuint client_id, GLuint service_id);
// Gets the Sampler info for the given sampler.
Sampler* GetSampler(GLuint client_id);
// Removes a Sampler info for the given sampler.
void RemoveSampler(GLuint client_id);
// Sets a sampler parameter of a Sampler.
// Returns GL_NO_ERROR on success. Otherwise the error to generate.
void SetParameteri(
const char* function_name, ErrorState* error_state,
Sampler* sampler, GLenum pname, GLint param);
void SetParameterf(
const char* function_name, ErrorState* error_state,
Sampler* sampler, GLenum pname, GLfloat param);
private:
friend class Sampler;
scoped_refptr<FeatureInfo> feature_info_;
// Info for each sampler in the system.
typedef std::unordered_map<GLuint, scoped_refptr<Sampler>> SamplerMap;
SamplerMap samplers_;
bool have_context_;
};
} // namespace gles2
} // namespace gpu
#endif // GPU_COMMAND_BUFFER_SERVICE_SAMPLER_MANAGER_H_
|
